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1) 540 :x + 126 :x = 18
=> (540 + 126) : x = 18
=> 666 : x = 18
=> x = 666 : 18
=> x = 37
2) 4982 + x . 136 - 854 = 14328
=> 4128 + x . 136 = 14328
=> x . 136 = 14328 - 4128
=>x . 136 = 10200
=> x = 10200 : 136
=> x = 75
1.
540 : x + 126 : x = 18
x * (540 + 126)=18
x*666=18
x=1/37
a, x = 108 : ( 2 + 3 + 4 )
x = 108 : 9
x = 12
b, x = 104 : (23 - 8 -7 )
x = 104 : 8
x = 13
a)bằng:2x+3x+4x=9x
108:9=12
b)bằng:23x-8x-7x=8x
104:8=13
nhơ cho mình một coin
a) 7210 : X + 356 = 391 b) 9000 - 120 x X = 4680
7210 : X = 391 - 356 120 x X = 9000 - 4680
7210 : X = 35 120 x X = 4320
X = 7210 : 35 X = 4320 : 120
X = 206 X = 36
c) 1230 - X - 108 = 870 d) 108 720 : X = 151 x 2
X - 108 = 1230 - 870 108 720 : X = 302
X - 108 = 360 X = 108 720 : 302
X = 360 + 108 X = 360
X = 468
/HT\
a) 7210 : X + 356 = 391
\(7210:x=391-356\)
\(7210:x=35\)
\(x=7210:35\)
\(x=206\)
b) 9000 - 120 x X = 4680
\(120.x=9000-4680\)
\(120.x=4320\)
\(x=4320:120\)
\(x=36\)
c) 1230 - X - 108 = 870
\(1230-x=870+108\)
\(x=1230-978\)
\(x=252\)
d) 108 720 : X = 151 x 2
\(x=108720:151.2\)
\(x=720.2\)
\(x=1440\)
("." là dấu nhân)
927 x 26 + 927 x 85 – 927 x 11
=927x(26+85-11)
=927 x100
=92700
ta co:927 x 26 + 927 x 85 - 927 x 11=927 x (26+85-11)
=927 x 100
=92700
Ta có: 927x26+927x85-927x11
=927x(26+85-11)
=927x100=92700
bài khó thế bạn
\(a,x-4702=9198\)
<=>\(x=9198+4702\)
<=>\(x=13900\)
\(b,485126+x=854609\)
<=>\(x=854609-485126\)
<=>\(x=369483\)
\(c,x+37206=108927\)
<=>\(x=108927-37206\)
<=>\(x=71721\)
\(d,780134-x=89476\)
<=>\(x=780134-89476\)
<=>\(x=690658\)
a) x – 4702 = 9198
x = 9198 + 4702
x = 13900
c) x + 37206 = 108 927
x = 108927 - 37206
x = 71721
b) 485 126 + x = 854 609
x = 854609 - 485126
x = 369483
d) 780 134 – x = 89 476
x = 780134 - 89476
x = 690658
a) x - 4720 = 9198
x = 9198 + 4720
x = 13918
b)485 126 + x = 854 609
x = 854 609 - 485 126
x = 369 483
c) x + 37 206 = 108 927
x = 108 927 - 37 206
x = 91 721
d) 780 134 - x = 89 476
x = 780 134 - 89 476
x = 690 658
a ; x - 4702 = 9198
x = 9198 + 4702
x = 13900
b ; 485 126 + x = 854 609
x = 854 609 - 485 126
x = 369 483
c ; x + 37206 = 108 927
x = 108 927 - 37206
x = 71721
d 780 134 - x = 89 476
x = 780 134 - 89 476
x = 690 658
K và Kb nha
a)x-4702=9198
x=9198+4702
x=13900
b)485126+x=854609
x=854609-485126
x=369483
c)x+37206=108927
x=108927-37206
x=71721
d)780134-x=89476
x=780134-89476
x=690658
a, \(x-4702=9198\) c, \(x+37206=108927\)
\(x=9198+4702\) \(x=108927-37206\)
\(x=13900\) \(x=71721\)
b, \(485126+x=854609\) b, \(780134-x=89476\)
\(x=854609-485126\) \(x=780134-89476\)
\(x=369483\) \(x=690658\)